A skier with a weight of 80 kg with skis rolled down a 160 m high mountain and stopped, having covered some more distance.

A skier with a weight of 80 kg with skis rolled down a 160 m high mountain and stopped, having covered some more distance. The modulus of the change in the potential energy of the skier is.

Problem data: m (mass of the considered skier with skis) = 80 kg; Δh (mountain height, change of the skier’s coordinate) = 160 m.

Reference values: g (acceleration due to gravity) ≈ 10 m / s2.

The change in the potential energy of the skier in question is determined by the formula: ΔEp = m * g * Δh.

Let’s calculate: ΔEp = 80 * 10 * 160 = 128 * 10 ^ 3 J (128 kJ).

Answer: The potential energy of the skier in question will change by 128 kJ.